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/*
* SPDX-FileCopyrightText: syuilo and misskey-project
* SPDX-License-Identifier: AGPL-3.0-only
*/
import { Injectable } from '@nestjs/common';
import { HttpRequestService } from '@/core/HttpRequestService.js';
import { bindThis } from '@/decorators.js';
type CaptchaResponse = {
success: boolean;
'error-codes'?: string[];
'errors'?: string[];
};
@Injectable()
export class CaptchaService {
constructor(
private httpRequestService: HttpRequestService,
) {
}
@bindThis
private async getCaptchaResponse(url: string, secret: string, response: string): Promise<CaptchaResponse> {
const params = new URLSearchParams({
secret,
response,
});
const res = await this.httpRequestService.send(url, {
method: 'POST',
body: params.toString(),
headers: {
'Content-Type': 'application/x-www-form-urlencoded',
},
}, { throwErrorWhenResponseNotOk: false });
if (!res.ok) {
throw new Error(`${res.status}`);
}
return await res.json() as CaptchaResponse;
}
@bindThis
public async verifyRecaptcha(secret: string, response: string | null | undefined): Promise<void> {
if (response == null) {
throw new Error('recaptcha-failed: no response provided');
}
const result = await this.getCaptchaResponse('https://www.recaptcha.net/recaptcha/api/siteverify', secret, response).catch(err => {
throw new Error(`recaptcha-request-failed: ${err}`);
});
if (result.success !== true) {
const errorCodes = result['error-codes'] ? result['error-codes'].join(', ') : '';
throw new Error(`recaptcha-failed: ${errorCodes}`);
}
}
@bindThis
public async verifyHcaptcha(secret: string, response: string | null | undefined): Promise<void> {
if (response == null) {
throw new Error('hcaptcha-failed: no response provided');
}
const result = await this.getCaptchaResponse('https://hcaptcha.com/siteverify', secret, response).catch(err => {
throw new Error(`hcaptcha-request-failed: ${err}`);
});
if (result.success !== true) {
const errorCodes = result['error-codes'] ? result['error-codes'].join(', ') : '';
throw new Error(`hcaptcha-failed: ${errorCodes}`);
}
}
@bindThis
public async verifyFriendlyCaptcha(secret: string, response: string | null | undefined): Promise<void> {
if (response == null) {
throw new Error('frc-failed: no response provided');
}
const result = await this.httpRequestService.send('https://api.friendlycaptcha.com/api/v1/siteverify', {
method: 'POST',
body: JSON.stringify({
secret: secret,
solution: response,
}),
headers: {
'Content-Type': 'application/json',
},
});
if (result.status !== 200) {
throw new Error('frc-failed: frc didn\'t return 200 OK');
}
const resp = await result.json() as CaptchaResponse;
if (resp.success !== true) {
const errorCodes = resp['errors'] ? resp['errors'].join(', ') : '';
throw new Error(`frc-failed: ${errorCodes}`);
}
}
// https://codeberg.org/Gusted/mCaptcha/src/branch/main/mcaptcha.go
@bindThis
public async verifyMcaptcha(secret: string, siteKey: string, instanceHost: string, response: string | null | undefined): Promise<void> {
if (response == null) {
throw new Error('mcaptcha-failed: no response provided');
}
const endpointUrl = new URL('/api/v1/pow/siteverify', instanceHost);
const result = await this.httpRequestService.send(endpointUrl.toString(), {
method: 'POST',
body: JSON.stringify({
key: siteKey,
secret: secret,
token: response,
}),
headers: {
'Content-Type': 'application/json',
},
});
if (result.status !== 200) {
throw new Error('mcaptcha-failed: mcaptcha didn\'t return 200 OK');
}
const resp = (await result.json()) as { valid: boolean };
if (!resp.valid) {
throw new Error('mcaptcha-request-failed');
}
}
@bindThis
public async verifyTurnstile(secret: string, response: string | null | undefined): Promise<void> {
if (response == null) {
throw new Error('turnstile-failed: no response provided');
}
const result = await this.getCaptchaResponse('https://challenges.cloudflare.com/turnstile/v0/siteverify', secret, response).catch(err => {
throw new Error(`turnstile-request-failed: ${err}`);
});
if (result.success !== true) {
const errorCodes = result['error-codes'] ? result['error-codes'].join(', ') : '';
throw new Error(`turnstile-failed: ${errorCodes}`);
}
}
@bindThis
public async verifyTestcaptcha(response: string | null | undefined): Promise<void> {
if (response == null) {
throw new Error('testcaptcha-failed: no response provided');
}
const success = response === 'testcaptcha-passed';
if (!success) {
throw new Error('testcaptcha-failed');
}
}
}
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